For parents who have no experience of the university system, haven't been to university themselves and want to know what they'll be spending money on, it's fair enough that they go and attend the relevant talks.
That said, they shouldn't mollycoddle their offspring and should let them go about their business on their own. I think it's much better to allow your son/daughter to get the train, figure out where to go and to sort things out by themselves. It's a small step in the road to independence and will start to gradually prepare you for uni.
(Though there are some people that genuinely like doing things of this nature with their parents, if that's you, feel free. No-one will judge you.)